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Flange Fittings

Square Flanges

Square flanges are designed for specialized piping and equipment connections where a square flange configuration is required for installation, alignment and secure bolted assembly.

Product Type:

Square Flanges

Size Range:

1/2" NB to 48" NB

Standards:

ASME / ANSI / ASTM and Customer Specifications

Pressure Class:

150 to 2500 LBS

Application:

Industrial Piping, Equipment & Specialized Connections

About This Product

Square Flanges

GS MetalFit supplies Square Flanges for specialized piping, equipment and engineering applications where a square-shaped flange configuration is required. Square flanges provide a bolted connection between compatible components and can be manufactured or supplied according to specified dimensions, material grades and project requirements.

Our Square Flanges are available in stainless steel, carbon steel, alloy steel, duplex, super duplex, nickel alloys and copper-nickel materials. Depending on the application, products can be supplied in different sizes, pressure ratings, face configurations, bolt-hole arrangements and dimensional requirements.

Square flanges can be produced according to applicable standards, engineering drawings or customer-specific specifications where a standard flange configuration does not meet the application requirements.

Product Forms

01

Stainless Steel Square Flanges

02

Carbon Steel Square Flanges

03

Alloy Steel Square Flanges

04

Duplex Steel Square Flanges

05

Super Duplex Square Flanges

06

Nickel Alloy Square Flanges

07

Copper Nickel Square Flanges

08

Custom Square Flanges

09

Square Flanges as per Customer Drawings

Technical Specifications

Size
1/2" NB (15 NB) to 48" NB (1200 NB)
Applicable Standards
ANSI / ASME B16.5, ASME B16.47 Series A & B, MSS SP-44, API 605, AWWA and Custom Drawings, where applicable
Pressure Class
150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS and 2500 LBS, subject to applicable design and dimensional requirements
Flange Face Type
Raised Face (RF), Ring Type Joint (RTJ) and other configurations as specified
BS Standards
BS 4504, BS 1560 and BS 10, where applicable
DIN Standards
DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638 and DIN 2673, where applicable
Compliance
NACE MR0175 / ISO 15156, where specified and applicable

Materials & Grades

Stainless Steel Square Flanges

Available in ASTM A182 / A240 grades including F304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H and 904L.

Carbon Steel Square Flanges

Available in ASTM / ASME A/SA105, A350, A181 LF2, A516 Grade 70, A36 and A694 grades including F42, F46, F52, F60, F65 and F70.

Alloy Steel Square Flanges

Available in applicable ASTM / ASME A/SA182 and A387 grades including F1, F5, F9, F11, F12, F22 and F91.

Duplex & Super Duplex Square Flanges

Available in ASTM / ASME A/SA182 grades including F44, F45, F51, F53, F55, F60, F61, 2205 (UNS S31803) and 2507 (UNS S32750).

Copper & Copper-Nickel Square Flanges

Available in selected copper and copper-nickel grades including UNS C10100, C10200, C10300, C10800, C12000, C12200, C70600 and C71500, including Cu-Ni 90/10 and Cu-Ni 70/30.

Nickel Alloy Square Flanges

Available in ASTM / ASME SB564, SB160, SB472 and SB162 materials including Nickel 200, Nickel 201, Monel 400, Monel K500, Inconel 600, Inconel 601, Inconel 625, Inconel 800, Inconel 825, Hastelloy C276 and Alloy 20.

Applications

01

Industrial Piping Systems

02

Process Equipment Connections

03

Engineering & Fabrication Projects

04

Chemical & Petrochemical Applications

05

Oil & Gas Equipment

06

Marine & Offshore Equipment

07

Machinery and Equipment Connections

08

Custom Piping Assemblies

09

Specialized Flanged Connections

Why Choose GS MetalFit?

Multiple Material Options

Square Flanges can be supplied in stainless steel, carbon steel, alloy steel, duplex, super duplex, nickel alloys and copper-nickel materials.

Custom Manufacturing

Products can be developed according to customer drawings, specified dimensions, bolt-hole arrangements and application requirements.

Different Surface & Face Configurations

Face configurations and machining details can be supplied according to the required piping or equipment connection.

Project-Specific Specifications

Size, material grade, pressure class, dimensions and applicable standards can be selected according to project requirements.

Industrial Application Focus

Our Square Flanges are intended for specialized industrial, engineering, equipment and piping applications where a square flange configuration is required.

Square Flanges Manufacturer & Supplier

GS MetalFit supplies Square Flanges for specialized industrial, engineering and piping applications. Unlike conventional circular flanges, square flanges feature a square outer profile and are selected where the equipment design, connection arrangement or installation requirements call for a square configuration.

Square Flanges can be supplied in different material grades, dimensions, pressure classes and face configurations. They may be manufactured according to applicable standards, customer drawings or specific engineering requirements.

Stainless Steel Square Flanges

Stainless Steel Square Flanges are available in commonly specified grades including 304, 304L, 316, 316L, 321, 347 and 904L. These materials can be selected for applications where corrosion resistance, durability and compatibility with the process environment are important.

Carbon Steel & Alloy Steel Square Flanges

Carbon Steel and Alloy Steel Square Flanges are suitable for applications where mechanical strength and pressure resistance are important considerations. Material options include ASTM A105, A350, A182 and A387 grades according to the required specification.

Duplex, Super Duplex & Nickel Alloy Square Flanges

For demanding service environments, GS MetalFit can supply Square Flanges in duplex, super duplex and nickel alloy materials such as UNS S31803, UNS S32205, UNS S32750, Nickel 200, Monel 400, Monel K500, Inconel 600, Inconel 625, Inconel 825, Hastelloy C276 and Alloy 20.

Material selection can be based on operating temperature, pressure, corrosion conditions and compatibility with the process medium.

Custom Square Flanges

GS MetalFit also supports requirements for custom Square Flanges where standard flange dimensions or configurations are not suitable. Products can be manufactured or supplied according to customer drawings, specified dimensions, bolt-hole patterns, material grades and technical requirements.

For project enquiries, customers can specify the required flange size, material, pressure class, face type, dimensions and applicable standard or drawing.

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